320541 has 8 divisors (see below), whose sum is σ = 460320. Its totient is φ = 197232.

The previous prime is 320539. The next prime is 320561. The reversal of 320541 is 145023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320541 - 2¹ = 320539 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 320541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4071 + ... + 4148.

It is an arithmetic number, because the mean of its divisors is an integer number (57540).

2³²⁰⁵⁴¹ is an apocalyptic number.

It is an amenable number.

320541 is a deficient number, since it is larger than the sum of its proper divisors (139779).

320541 is a wasteful number, since it uses less digits than its factorization.

320541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8235.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 320541 is about 566.1634039745. The cubic root of 320541 is about 68.4375618731.

Adding to 320541 its reverse (145023), we get a palindrome (465564).

It can be divided in two parts, 320 and 541, that added together give a triangular number (861 = T₄₁).

The spelling of 320541 in words is "three hundred twenty thousand, five hundred forty-one".